{"id":"W3193287429","doi":"10.1128/spectrum.00291-21","title":"Pre-Vaccine Positivity of SARS-CoV-2 Antibodies in Alberta, Canada during the First Two Waves of the COVID-19 Pandemic","year":2021,"lang":"en","type":"article","venue":"Microbiology Spectrum","topic":"SARS-CoV-2 and COVID-19 Research","field":"Medicine","cited_by":29,"is_retracted":false,"has_abstract":true,"ca_institutions":"Public Health Agency of Canada; University of Calgary; Ministry of Health; Alberta Hospital Edmonton; University of Alberta","funders":"Alberta Precision Laboratories; Government of Alberta","keywords":"Pandemic; Coronavirus disease 2019 (COVID-19); Vaccination; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Serology; Virology; Population; 2019-20 coronavirus outbreak; Medicine; Demography; Antibody; Environmental health; Immunology; Outbreak; Internal medicine; Infectious disease (medical specialty); Disease","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0005861578,0.0003268986,0.000241602,0.001077636,0.001264117,0.0008836978,0.0008398067,0.0004492302,0.00111525],"category_scores_gemma":[0.001471058,0.000286082,0.0003018896,0.001435851,0.00067769,0.0003055513,0.000552445,0.0005829706,0.0001405664],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.01276707,"about_ca_system_score_gemma":0.01233137,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.985657,"about_ca_topic_score_gemma":0.9913417,"domain_scores_codex":[0.9992894,0.00006143187,0.00002926761,0.0000832602,0.0002576983,0.0002789356],"domain_scores_gemma":[0.9989018,0.00007896688,0.0002287532,0.00002714332,0.0004111486,0.0003521474],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001108333,0.00003708992,0.9960247,0.00001080137,0.00001951443,0.0001018142,0.0003890552,0.0001588563,0.0002206711,0.00003072886,0.0002755977,0.002620296],"study_design_scores_gemma":[0.00000234139,0.00002652605,0.9989342,0.000008954767,0.000007853112,0.00004145759,0.0006367007,0.0001383164,0.00004756809,0.000006425472,0.000145397,0.000004178535],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9972134,0.0003139593,0.00006286634,0.0001045387,0.000008447189,0.00001927735,0.0007537043,0.000005677191,0.001518172],"genre_scores_gemma":[0.9986786,0.0001744717,0.00007222556,0.00004876574,0.000003431898,0.000004516535,0.0003865727,0.000001559212,0.000629806],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01434302,"threshold_uncertainty_score":0.09263206,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02294377105766094,"score_gpt":0.3140119532565147,"score_spread":0.2910681821988537,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}